Quasi phase-matched FOPA with 50 nm gain bandwidth using dispersion stable highly nonlinear fiber. - Shigehiro Takasaka; Yuki Taniguchi; Masanori Takahashi; Jiro Hiroshi; Masateru Tadakuma; Hiroshi Matsuura; Kohei Doi; Ryuichi Sugizaki (OFC, 2014)

Non-photorealistic Radiance Remapping. - Kohei Doi; Yuki Morimoto (SIGGRAPH Posters, 2020)

Global Illumination-Aware Color Remapping with Fidelity for Texture Values. - Kohei Doi; Yuki Morimoto; Reiji Tsuruno (SIGGRAPH Posters, 2021)

Global Illumination-Aware Stylised Shading. - Kohei Doi; Yuki Morimoto; Reiji Tsuruno (Comput. Graph. Forum, 2021)

Poster: Inaudible Acoustic Noise from Silicon Capacitors for Voice-Command Injection. - Kohei Doi; Takeshi Sugawara 001 (CCS, 2022)

Acoustic Eavesdropping Attack Using Self-Mixing Laser Interferometer. - Kohei Doi; Kunihiko Ooi; Takeshi Sugawara 001 (ASHES@CCS, 2024)

Laser-Based Covert Channel Attack Using Inaudible Acoustic Leakage from Multilayer Ceramic Capacitors. - Kohei Doi; Takeshi Sugawara 001 (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2025)